Machine for embossing wood



MAOHINEFOR EMBOSSING WOOD. a No. 500,998. Patented July 4,1893.

WITNESSES; I QVENTOB 9 9 9 v WEZW Y QQ W MM I 9 I ATTORNEY UNIT D STATES PATENT OFF CE.

SPENCER L. DAVIS, OF BROOKLYN, NEW YORK.

MACHINE FOR EMBOSSING WOOD.

SPECIFICATION forming part of Letters Patent No. 500,998, dated July 4, 1893.

Application filed June 22, 1891. Serial No. 397,028. (No model.)

To all whom it may concern:

Be it known that I, SPENCER L. DAVIS, of Brooklyn, county of Kings, and State'of New York, have invented certain new and useful Improvements in Machines for Embossing Wood; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had'to the accompanying drawings, in which Figure 1 is a side elevation of the machine, partly in section. Fig. 2 is a front elevation, partly in section, showing the die, the supporting-roller, and the mechanism for adj usting the die with relation to the roller. Fig. 3 I 5 is an enlarged detail view, showing the mechanism for holding the die-shaft in place. Fig. 4 is a detail view, showing the-die-shaft and the die, the latter being in section. Fig. 5 is an end view, showing the die and the dieshaft. Fig. 6 is an enlarged detail view of a combined worm and bevel gear.

This invention relates to machines for embossing wood by the action of rotating dies, and its object is to enable dies of difierent character to be readily interchanged or replaced, one for another, according as the machine is to be used; or one or another of different kinds of work or ornamentation.

A further object of my said invention is to 0 provide mechanism that will permit of the ready raising and lowering of the die with reference to the support which carries or receives the wood while being passed underneath the die and operated upon by the latter. I

My invention comprises certain novel combinations of parts whereby the said objects are eflectually secured.

A is the usual table having a transverse slot A therein through which works the usual sup- 4o porting roller B of a wood embossing machine;

and C O are the standards which support the movable parts hereinafter referred to. The table, the supporting roller, and the said standards may be raised upon any suitable frame- 4 5 work. Upon each standard, 0, is placed a vertically sliding block, D, the standards serving as guides for the blocks. Each block, D,

is internally threaded to receive a screw, E, the upper end of which is provided with a worm wheel, a. The said worm wheels, (1, are

placed in horizontal slots, 1), in the upper ends of the standard 0, as represented more clearly in Fig. 1, so that the screws E are prevented from moving up or down. Into each of the worm wheels, at, gears a worm, 0, upon one end of which is a beveled wheel, A hor zontal shaft, 6, is supported in suitable bear1ngs,f, which may, themselves, be supported upon a cross-bar, g, affixed to the upper ends of the standards 0. Upon this shaft, 6, are beveled wheels, 72, which gear into the beveled wheels, d, on the worm, c. The shaft, e, may also be provided with ahand wheel, t, by WlllOh it may be turned. By rotating said shaft, e, simultaneous movement is communicated through the beveled gear wheels, h, and, cl, the worms 0, and the worm-wheels, a, to the screws, e, so that the said screws being of the same pitch and character simultaneously raise and lower, as the case may be, the two blocks D, thereby raisingand loweringboth ends simultaneously of the die-carrying shaft F and ournals or gudgeons, k, which are journaled 1n sa1d blocks. To insure greater steadlness of motion-the said blocks may be connected by a cross-bar, m.

It will be observed that, inasmuch, as the blocks D move simultaneously and are actu ated in unison they constitute, so to spealga single block for the purpose of raislng and lowering the die shaft F. Each of the said blocks is provided with an extension G,wh1ch are parallel with each other and which carry the journal boxes which receive the ournals, lo, hereinbefore referred to of the die carrying shaft F. These extensions G having the relations just described constitute in ef fect, a single arm which carries the die carry ing shaft F and the construction herembefore described viz: that of two blocks D working on two separate standards E, is especially de-" signed for use when the die shaft F 1s of corn siderable length; but when said die shaft is of inconsiderable length, as for example, a few inches only, the extensions G may be pro vided upon a single block placed between the standards E, so as to be guided thereby, and may in such case be operated, if desired, by a single screw, E, which should be placed mid-- way between the two standards. One or both 100 of the extensions, G, hasits upper half, n, mov able and pivoted as shown at, a. The catch P, is so pivoted to one of the parts of extension G as to catch over the outer end of the other part thereof, as illustrated in Fig. 3. The spring I) may be so arranged as normally to hold the catch in place, and by pressing the catch against the spring, the part 07. may be turned upward and backward to release the journal of the die-carrying shaft F.

lVhen desired, only one of the extensions G may be constructed with the movable parts, at, as herein described, Thus, for example, in Fig. 2 that at the left-hand of said figure is supposed to be so constructed while the other is not. One or both of the said extensions Ur, is furthermore itself pivoted to its adjacent block, D, with an axis substantially at right angles with that of the die carrying roller, F, as represented in Fig. 3 so that when the journal of the die carrying shaft, F, at the opposite end of the latter, is released from its bearings or journaling box in the extension G, it may be turned upward clear of its bearin g or j ournalin g box, thereby permitting the die, I, to he slid longitudinally off and away from the die carrying shaft F, and replaced by another. The die I, may be held in position upon the die carrying shaft F, in any usual or suitable manner.

It will be seen, that by the combinations of parts hcreinbefore described provision is made for the ready removal and replacement of the dies, and also for a vertical movement thereof Without liability of any inequality in journaled in the blocks, a brace-bar connecting the two b1ocks,a combined Worm and bevel gear journaled on each side of the frame, the

Worm-portions c of which are engaged by the screw-gears a, and a shaft carrying bevelgears engaging the gear-portions d, as set forth.

2. In a machine for embossing wood, the combination, with a frame carrying vertical screw-shafts, of threaded blocks on the shafts, an extension carried by each block and havin g a half-bearin g therein, a die-carrying shaft journaled in the said bearing, a cover or cap pivoted to each extension and having a half bearing, a catch carried by the pivoted cap and having a projection on its lower end adapted to contact with the under side of the extension and a spring for holding the catch in its closed position, substantially as described.

SPENCER L. DAVIS.

Witnesses: I

GEO. HARRISON MCADAM, EDWARD L. WALSH. 

